Karst Development Along Lujiang Segment of the Nujiang（Salween） River in Western Yunnan Province and Its Potential Influence on the Railway Project
详细信息
- 责任者：Kang Chunjing (College of Earth Science and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Zhang Xujiao
- 刊名：Geological Bulletin of China
- 出版年：2012
- 卷期：31(2)
- 关键词：岩溶 ; karst ; 工程地质勘察 ; engineering geological investigation ; 怒江 ; Nujiang River
- 页码：p.374-381
- 图表：4 illus., 21 refs.
- 分类号：1702
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
摘要
This paper analyzed and summarized karst formation mechanism and growth regularity on the basis of detailed investigation and indoor study of geological disasters of he Dali-Ruili railway in Machang and Daojieba Sheet.The complex geological structures,soluble carbonate,hot and humid weather and abundant precipitation all provide favorable conditions for the development of karst landform.There are surface karst funnel and large underground karst caves in the study area,and they will bring great harmfulness to railway and railway tunnel.Since many sections have karst development conditions,it is necessary to carry out detailed karst investigation along railways.